CD4040 - 12-Stage Ripple Carry Binary Counters
Features:
Wide supply voltage range: 3.0V to 15V
High noise immunity: 0.45 VDD (Typ.)
Low power TTL compatibility: Fan out of 2 driving 74L
or 1 driving 74LS
Medium speed operation: 8MHz typ. at VDD=10V
Schmitt trigger clock..